Drinking tumbler



FIG. 1 is a top perspective view of a drinking tumbler, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a typical elevational view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is an enlarged cross-section thereof on line 5--5 in FIG. 1. 

The ornamental design for a drinking tumbler, as shown and described. 